US 11,894,760 B2
Control circuit and method for fuel-saving multi-state switch
Wenshun Chen, Fujian (CN); and Jiaxiang Li, Fujian (CN)
Assigned to Xiamen Yaxon Network Co., Ltd, Fujian (CN)
Filed by Xiamen Yaxon Network Co., Ltd, Fujian (CN)
Filed on Jan. 15, 2022, as Appl. No. 17/576,935.
Application 17/576,935 is a continuation of application No. PCT/CN2020/102151, filed on Jul. 15, 2020.
Claims priority of application No. 201910654794.6 (CN), filed on Jul. 19, 2019.
Prior Publication US 2022/0140720 A1, May 5, 2022
Int. Cl. H02M 3/07 (2006.01); H02M 1/00 (2006.01)
CPC H02M 1/007 (2021.05) [H02J 2207/20 (2020.01)] 13 Claims
OG exemplary drawing
 
1. A control circuit for a fuel-saving multi-state switch, comprising:
a vehicle body Electronic Control Unit (ECU),
a fuel-saving control unit, and
a Pulse Width Modulation (PWM) voltage regulating unit, wherein:
the fuel-saving control unit is connected to the vehicle body ECU through a Controller Area Network (CAN) bus to be configured to collect CAN signals,
the fuel-saving control unit is configured to determine a switch gear required by a current vehicle according to the CAN signals and output a PWM pulse signal having a corresponding duty cycle,
the PWM voltage regulating unit is connected to the fuel-saving control unit to be configured to receive the PWM pulse signal,
the PWM voltage regulating unit is configured to output a voltage value corresponding to the switch gear according to the PWM pulse signal, and
the vehicle body ECU is connected to the PWM voltage regulating unit to be configured to receive the voltage value, so as to control a speed and torque of an engine according to the voltage value.